We've had our screen on more often than not this evening and we're at about 60% battery life after perhaps two hours of cumulative use.

ENGADGET: We've got iPhones, what do you want to know?

The meter's digital display gives the appliance's cumulative consumption in kilowatt-hours.

ECONOMIST: The much-talked-of smart grid prepares to enter the home

In comparison with cities of a similar size in population, drivers in the city of San Jose waste a cumulative of 10 million more annual hours sitting in traffic jams and suffer a 15% higher commute delay per peak-time traveler.

ENGADGET: IBM shows off Smarter Traveler traffic prediction tool